RT Journal Article SR Electronic T1 Eprex warning issued, but no ban JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 778 OP 778 DO 10.1503/cmaj.1040210 VO 170 IS 5 A1 Barbara Sibbald YR 2004 UL http://www.cmaj.ca/content/170/5/778.abstract